As of the 3.0.3 release, Swiftweasel has shifted its primary optimization from processor specific to P.G.O.[1] P.G.O. stands for Profile-guided optimization. It is a two step building process. The application is compiled one time and then run to produce a profile. The profile is then used to guide a second compilation of the application. Some of the older optimizations are still used, but there are now only Intel and AMD versions of each build. It is released compiled in a tar.gz package. There are also separate installers for Ubuntu and Arch linux available through their communities.